Ren, Yinghui
Wu, Zhiling
Wang, Xueyan
Sun, Qun
Article History
Received: 30 October 2024
Accepted: 11 June 2025
First Online: 3 July 2025
Declarations
:
: Ethical approval was obtained from the Ethics Committee of Sichuan Provincial Maternal and Child Health Care Hospital (Approval number: #20231205-312), and informed consent was secured from all participants. All methods were performed in accordance with the relevant guidelines and regulations, and the study was conducted in accordance with the principles of the Declaration of Helsinki ().
: Not applicable.
: The authors declare no competing interests.